Average sea water temperature in December:
+48.1°F
| Minimum sea water temperature in December: | 56.8°F |
| Maximum sea water temperature in December: | 41.5°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 44.7°F. The highest and lowest sea temperatures during the month were 50.5°F and 41.5°F.
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| South Bethany |
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| South Bethany |
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| South Bethany |
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| South Bethany |
Monthly sea water temperature in South Bethany, °F
Which USA resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Kailua Kona | 79.3°F | 78.3°F |
| West Palm Beach | 79.1°F | 78.4°F |
| Fort Lauderdale | 78.8°F | 77.6°F |
| Honolulu | 78.7°F | 78.3°F |
| Hawaii | 78.6°F | 78.3°F |
| Kauai | 78.3°F | 76.0°F |
| Maui | 78.1°F | 77.8°F |
| Miami Beach | 77.7°F | 75.9°F |
| Oahu | 77.2°F | 77.2°F |
| Islamorada | 76.8°F | 73.4°F |
| Key Largo | 76.7°F | 73.1°F |
| Key West | 76.2°F | 72.6°F |
| Miami | 76.0°F | 73.0°F |
| Everglades | 74.0°F | 69.7°F |
| Marco Island | 72.0°F | 68.0°F |
| Naples | 71.6°F | 67.7°F |
| South Padre Island | 71.4°F | 71.9°F |
| Sanibel Island | 71.0°F | 67.1°F |
| Cocoa Beach | 69.5°F | 66.6°F |
| Siesta Key | 69.4°F | 65.6°F |
Best time for vacation in South Bethany
South Bethany on a weather map
Places in USA:
Name
°F
24 Hours Forecast
South Bethany
Local time: 17:28
December 26, friday
1800
39°F
NW
14 mph
14 mph
2100
39°F
N
21 mph
21 mph
December 27, saturday
0000
41°F
N
12 mph
12 mph
0300
41°F
N
9 mph
9 mph
0600
39°F
SE
7 mph
7 mph
0900
39°F
SE
15 mph
15 mph
1200
41°F
SE
22 mph
22 mph
1500
43°F
S
21 mph
21 mph
